Yeah, I had run into the same thing initially, but I do have the
+python25 variant installed.  However, just to be sure, I followed
your advice and did a clean install (adding icu).  Here's what I have
now:

port installed |grep boost
  boost @1.34.1_2+icu+python25 (active)
  boost-jam @3.1.16_0 (active)

So I went back and cleaned my mapnik source dir, re-built and
reinstalled, but I still get the same errors:

>>> from mapnik import *
>>> p = Projection("+init=epsg:3309")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: __init__() should return None, not 'NoneType'


One minor difference between what you listed and what happens on my
system is that my copy of MacPorts doesn't list gmake as a dependency
of boost (I don't have gmake installed through MacPorts), though that
might be a tiger/leopard difference.

-Ken-ichi


On Fri, Feb 29, 2008 at 10:54 AM, Dane Springmeyer <[EMAIL PROTECTED]> wrote:
> Ken,
>
>  When you installed boost from macports did you specify the python
>  variant?
>
>  I missed this at first, and I found it is needed on leopard at least.
>  So, you may benefit from uninstalling, cleaning, and reinstalling
>  boost with variant python25 (and if you are installing from svn then
>  icu as well)
>
>  Try typing:
>  $port info boost
>
>  and you should get:
>  ----
>
>  boost 1.34.1, Revision 2, devel/boost (Variants: universal, darwin_9,
>  darwin, python24, python25, icu)
>  http://www.boost.org
>
>  Boost provides free portable peer-reviewed C++ libraries. The emphasis
>  is on portable libraries which work well with the C++ Standard Library.
>
>  Build Dependencies: boost-jam, gmake
>  Platforms: darwin
>  Maintainers: [EMAIL PROTECTED]
>
>  ---
>
>  then:
>  sudo port uninstall boost-jam boost
>  sudo port clean boost-jam boost
>  sudo port install boost-jam
>  sudo port install -v boost +python25 +icu
>
>
>  Cheers,
>
>  Dane
>
>
>
>
>  On Feb 29, 2008, at 9:42 AM, Ken-ichi wrote:
>
>  > Thanks for the reply, Artem.  Here's what happened when I ran the
>  > commands you recommended in the regular Python interactive
>  > interpreter:
>  >
>  >>>> from mapnik import *
>  >>>>
>  >>>> p = Projection("+init=epsg:3309")
>  > Traceback (most recent call last):
>  >  File "<stdin>", line 1, in <module>
>  > TypeError: __init__() should return None, not 'NoneType'
>  >>>> p.forward(Coord(-1.25,51.75))
>  > Traceback (most recent call last):
>  >  File "<stdin>", line 1, in <module>
>  > NameError: name 'p' is not defined
>  >>>> m = Map(600,300,"+proj=latlong +datum=WGS84")
>  > Traceback (most recent call last):
>  >  File "<stdin>", line 1, in <module>
>  > TypeError: __init__() should return None, not 'NoneType'
>  >
>  >
>  > Also, I'm not sure if it makes any difference, but I installed boost
>  > and all the other dependencies with MacPorts.  Also, here's my gcc
>  > version info:
>  >
>  > Target: i686-apple-darwin8
>  > Configured with: /private/var/tmp/gcc/gcc-5367.obj~1/src/configure
>  > --disable-checking -enable-werror --prefix=/usr --mandir=/share/man
>  > --enable-languages=c,objc,c++,obj-c++
>  > --program-transform-name=/^[cg][^.-]*$/s/$/-4.0/
>  > --with-gxx-include-dir=/include/c++/4.0.0 --with-slibdir=/usr/lib
>  > --build=powerpc-apple-darwin8 --with-arch=nocona --with-tune=generic
>  > --program-prefix= --host=i686-apple-darwin8
>  > --target=i686-apple-darwin8
>  > Thread model: posix
>  >
>  > -Ken-ichi
>  >
>  >
>  > On Fri, Feb 29, 2008 at 1:29 AM, Artem Pavlenko <[EMAIL PROTECTED]>
>  > wrote:
>  >>
>  >>
>  >>> Hi all,
>  >>>
>  >>> Just wanted to poke around with Mapnik 0.5 a bit, but I'm having
>  >>> problems getting it set up under Max OS 10.4.11, Python 2.5.1, and
>  >>> Boost 1.34.
>  >>
>  >> I'm using the same setup.
>  >>
>  >>
>  >>> I run scons.py to build and again to install and
>  >>> everything seems to run fine, all the files seem to end up in the
>  >>> right places, but here's what happens when I try the Projection
>  >>> examples in the installation instructions in iPython (replacing the
>  >>> EPSG code with something I actually had in my share/proj/epsg file):
>  >>>
>  >>> In [1]: from mapnik import Projection
>  >>>
>  >>> In [2]: p = Projection(['init=epsg:3309'])
>  >>
>  >>
>  >> The above has been deprecated.
>  >>> ----------------------------------------------------------------------
>  >>
>  >>> -----
>  >>> <class 'Boost.Python.ArgumentError'>      Traceback (most recent
>  >>> call last)
>  >>>
>  >>> /Users/kueda/<ipython console> in <module>()
>  >>>
>  >>> <class 'Boost.Python.ArgumentError'>: Python argument types in
>  >>>    Projection.__init__(Projection, list)
>  >>> did not match C++ signature:
>  >>>    __init__(_object*)
>  >>>    __init__(_object*, std::string)
>  >>>
>  >>
>  >>
>  >>
>  >>
>  >>>
>  >>>
>  >>> So that looked like it was expecting a string and not a list, so I
>  >>> tried this:
>  >>>
>  >>> In [3]: p = Projection('init=epsg:3309')
>  >>> ----------------------------------------------------------------------
>  >>> -----
>  >>> <type 'exceptions.RuntimeError'>          Traceback (most recent
>  >>> call last)
>  >>>
>  >>> /opt/local/src/mapnik-trunk/tests/<ipython console> in <module>()
>  >>>
>  >>> <type 'exceptions.RuntimeError'>: failed to initialize projection
>  >>> with:init=epsg:3309
>  >>>
>  >>>
>  >>
>  >>
>  >> Ok, try :
>  >>
>  >> from mapnik import *
>  >>
>  >> p = Projection("+init=epsg:3309")
>  >> p.forward(Coord(-1.25,51.75))
>  >>
>  >> projections strings are in proj4_init_plus format.
>  >>
>  >>
>  >>>
>  >>> Any idea what's going on here?  I also had trouble with the
>  >>> GettingStarted tutorial:
>  >>>
>  >>> In [5]: from mapnik import *
>  >>>
>  >>> In [6]: m = Map(600,300,"+proj=latlong +datum=WGS84")
>  >>> ----------------------------------------------------------------------
>  >>> -----
>  >>> <type 'exceptions.TypeError'>             Traceback (most recent
>  >>> call last)
>  >>>
>  >>> /Users/kueda/<ipython console> in <module>()
>  >>>
>  >>> <type 'exceptions.TypeError'>: __init__() should return None, not
>  >>> 'NoneType'
>  >>
>  >> The above works for me.  Could you try running the same not from
>  >> iPython console ?
>  >>
>  >> Artem
>  >>
>  >>>
>  >>>
>  >>>
>  >>> Any help would be appreciated, and apologies in advance if I'm
>  >>> asking
>  >>> a question that's already been answered a billion times (I sifted
>  >>> through the list archives and didn't see anything).
>  >>>
>  >>>
>  >>> -Ken-ichi
>  >>> _______________________________________________
>  >>> Mapnik-users mailing list
>  >>> [email protected]
>  >>> https://lists.berlios.de/mailman/listinfo/mapnik-users
>  >>>
>  >>
>  >>
>  > _______________________________________________
>  > Mapnik-users mailing list
>  > [email protected]
>  > https://lists.berlios.de/mailman/listinfo/mapnik-users
>
>
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